High severity · published Jan 17, 2024
CVE-2024-0646
Kernel: ktls overwrites readonly memory pages when using function splice with a ktls socket as destination
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
An out-of-bounds memory write flaw was found in the Linux kernel’s Transport Layer Security functionality in how a user calls a function splice with a ktls socket as the destination. This flaw allows a local user to crash or potentially escalate their privileges on the system.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
4.20 before 5.4.267; 5.5 before 5.10.208; 5.11 before 5.15.147; 5.16 before 6.1.69; 6.2 before 6.6.7; 6.7; +3 more · source: NVD
RH
RHOL-5.8-RHEL-9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.2 Advanced Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.2 Telecommunications Update Service · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.4 Telecommunications Update Service · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.6 Extended Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.8 Extended Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 9 · Red Hat
All versions, or not specified · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-0646
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-0646
Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0723
Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0724
Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0725
Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0850
Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0851
Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0876
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